That trike is an Air Creation Tanarg, which is not really relevant to the cause of many of these accidents IMHO.
The trike is fitted with an Evolution Trikes wing, not an option offered by A.C, that in itself is not the problem either.
Where the problem is, the wing is a small fast wing, ( around 12 sqm ). Many pilots with lots of experience, come unstuck because they have been trained and are familiar with the larger wings, and where they have been able to get away with inputting large bank angles at low speed without coordinating the turn, the new generation wings will bite them, due to the higher wing loading.
What is needed, is training with an instructor experienced with the new gen wings, and practice, practice, practice at recovery from a spiral dive (demonstrated beautifully by Henry in the back seat). The inputs need to be instinctive, because where the above scenario is most likely to happen is low altitude where you don't have time for the "oh shit what is it I do here again" moment.
I am not in anyway suggesting that this is relevant to the accident being discussed here, and it is only my personal opinion. ( I am not an instructor)